491 OHIP code: Chronic bronchitis
491 is the OHIP diagnostic code for “Chronic bronchitis” in Ontario Ministry of Health’s March 2026 release, in effect from Mar 13, 2026.
Official description
491Chronic bronchitis
OHIP diagnostic codes (ICD-9) · Ontario
Notes for 491
Ontario Ministry of Health’s list gives no includes, excludes or other notes for 491 or the headings above it.
Where 491 sits
- 1SectionDiseases of the Respiratory System
- 2Valid code 491Chronic bronchitis
Source and release
- Data release
- OHIP · March 2026
- Effective date
- Mar 13, 2026
- Publisher
- Ontario Ministry of Health
This page is built from the OHIP catalog that Vero Codes reads when it suggests codes: Ontario Ministry of Health’s March 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does OHIP diagnostic code 491 mean?
491 is the OHIP diagnostic code for “Chronic bronchitis” in Ontario Ministry of Health’s OHIP March 2026 release.
Where is 491 in the OHIP list?
491 is listed under Diseases of the Respiratory System.
What coding notes apply to 491?
Ontario Ministry of Health’s list gives no includes, excludes or other notes for 491 or the headings above it.
Which OHIP release does this page use?
It uses Ontario Ministry of Health’s March 2026 release, in effect from Mar 13, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.